FWAL-01 is an accessory Wide Angle Lens which fits over the housing port and can be installed and removed during the course of the dive.
Wide Angle Lens for Fantasea Housings (except the FS-5, FS-6, FS-9 and FS-51 Housings), Olympus Housings and any other housing with a 46mm or 52mm threaded lens port.
Additional Lens Adapter required for housings that don't have 46mm port threads.
Included in kit:
Underwater Wide Angle Conversion Lens
M52 to M46 Step Down Ring
Lens Pouch
Front and Rear Lens Caps